8 + 5 =
8 + 5 = 13
/ \
2 3
8 + 2 = 10
15 - 9 =
15 - 9 = 6
/ \
5 10 - 9 = 1
5 + 1 = 6
50 cm + ____ cm = 1 m
50 cm + 50 cm = 1 m
10
/ \
5
10
/ \
5 5
17 - 1 =
17 - 1 = 16
17 + 9 =
17 + 9 = 26
/ \
3 6
17 + 3 = 20
24 - 5 =
24 - 5 = 19
/ \
14 10 - 5 = 5
14 + 5 = 19
1 cm + _____ cm = 1 m
1 cm + 99 cm = 1 m
10
/ \
2
10
/ \
2 8
11 - 3 =
11 - 3 = 8
/ \
1 10 - 3 = 7
1 + 7 = 8
29 + 3 =
29 + 3 =
/ \
1 2
29 + 1 = 30
33 - 7 =
33 - 7 = 26
/ \
23 10 - 7 = 3
23 + 3 = 26
52 cm + ____ cm = 1 m
52 cm + 48 cm = 1 m
12
/ \
6
12
/ \
6 6
28 - 4 =
28 - 4 = 24
36 + 7 =
36 + 7 = 43
/ \
4 3
36 + 4 = 40
47 - 8 =
47 - 8 = 39
/ \
37 10 - 8 = 2
37 + 2 = 39
85 cm + _____ cm = 1 m
85 cm + 15 cm = 1 m
15
/ \
8
15
/ \
7 8
22 - 6 =
22 - 6 = 16
/ \
12 10 - 6 = 4
12 + 4 = 16
45 + 9 =
45 + 9 = 54
/ \
5 4
45 + 5 = 50
52 - 4 =
52 - 4 = 43
/ \
42 10 - 4 = 6
42 + 6 = 48
75 cm + _____ cm = 1 m
75 cm + 25 cm = 1 m
25
/ \
12
25
/ \
12 13
39 - 2 =
39 - 2 = 37